Trivia: Mega Man 1 is the only platformer in the Mega Man franchise with a score system. However, it doesn't really do anything. You can't save your score, it doesn't grant extra lives, and it has no effect on the game really in any way other than score pickups instead of health at times. They actually carried this over in the PSP remake of Mega Man Powered Up, where it still functions much the same useless way.